US Bridges

Ch S13 over I-55

Fair

Logan County, Illinois · Broadwell Interchnge · Structure no. 054003900000000

Built
1974
51 years old, rebuilt 2024
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
2 main spans
Daily traffic
350
2022 count
Owner
State
State Highway Agency

About this bridge

Ch S13 over I-55 is a steel continuous stringer/multi-beam or girder carrying Ch S13 over I-55 in Logan County, Illinois. It was built in 1974 and reconstructed in 2024, so it is 51 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 350 vehicles a day, roughly 14% of them trucks, projected to reach 31,800 by 2046. The structure is 296 ft (90.3 m) long and 62 ft wide.

Location

Open in Google Maps
CarriesCh S13
CrossesI-55
LocationBroadwell Interchnge
RouteCounty Highway 0
CountyLogan County
StateIllinois
Coordinates40.07437, -89.44231
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length296 ft (90.3 m)
Longest span117 ft (35.7 m)
Deck width62 ft (18.9 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic31,800 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ch S13 over I-55 built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2024.

What condition is Ch S13 over I-55 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Ch S13 over I-55 carry?

About 350 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Ch S13 over I-55?

The structure is 296 ft (90.3 m) long with a longest span of 117 ft (35.7 m) and a deck 62 ft wide.

Who owns Ch S13 over I-55?

It is owned by the State Highway Agency.